These days, it seems everyone is "going green." From individuals to businesses, everyone is looking for ways to be more sustainable and environmentally-friendly. But is green tech the way of the future or just another fad?

We live in an age when DIY has taken on exciting, nerve-wracking connotations. Add in some knowledge and some money from crowdfunding sites like Kickstarter, and you have a recipe for a transformed world. Will glow-in-the-dark plants be a part of it?

As far back as 1500 B.C.E., people were trying to purify water to make it drinkable. And we're still at it. Today inventors use tools as simple as clay and as sophisticated as carbon nanotubes to bring clean water to the world.

The rising cost and projected scarcity of fossil fuels has people talking. But finding a new power source and developing an infrastructure will be costly and challenging. Will we still be using gasoline in 2050?

There is no accepted standard of what makes a "green" gadget. With that in mind, here are five devices that do not use any energy at all or that find novel ways to rethink a common gadget while also making environmental improvements.

If you turn off the lights in your computer room, you'll probably see the glowing eyes of vampire electronics peering back at you. A smart power strip can help you cut down on how much energy they waste.

While many of us are phasing out our incandescents for CFLs one bulb at a time, there might be a third contender on the market soon enough. LEDs are making the shift from your headlights to your bedside lamps.